horrific train wreck involving military veterans yesterday evening in midland, some 300 miles west of dallas-ft. worth. investigators say a freight train slammed into this flatbed carrying the vets and their families to a banquet. four servicemen died and more than a dozen other people got hurt. one of victims, army sergeant michael, his mother-in-law says the purple heart winner pushed his wife out of the way possibly saving her life. other witnesses say they saw folks panic and jump from the parade float. casey is live with more at the scene in midland, texas. this was one of two floats in the parade, right? >>casey: i will explain that in a second. but, first, right back there behind me the train in the last minute or so just started moving, the first time we have seen that since this accident. obviously they have to clear the railway at some point but investigators point out they are in the infancy of the investigation. there were two floats totaled. one has successfully made it across the intersection and cleared it. as the second was going through that is when the accident happened. this